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Eighteen-year-old Israel Hernandez's grieving mother cried at the podium where family attorneys announced they will be moving forward with a lawsuit against the city of Miami Beach and the city's police department. (Published Tuesday, Aug. 27, 2013)

Eighteen-year-old Israel Hernandez's grieving mother cried at the podium where family attorneys announced they will be moving forward with a lawsuit against the city of Miami Beach and the city's police department.

"We're not trying to drag attention to our family, but we're trying give the attention that my brother needs so there's no more [cases like] Israel's happening where we live," said his older sister Offir Hernandez.

"What we know is that Israel dies on that pavement on Harding Avenue after having been suspected of what can only be described as a minor property offense," said Todd McPharlin, one of the family's attorneys.

Three weeks ago, Miami Beach Police said they caught the 18-year-old, tagging an empty Mcdonald's building. Hernandez allegedly took off running when officers approached him. Police said officer Jorge Mercado _ now placed on administrative leave _ used a Taser on Hernandez.

"We believe that this investigation will illustrate that the city of Miami Beach, and the Miami Beach Police Department do not properly train or supervise their officers in their use of force, including their use of a Taser weapon, as we believe occurred in Israel's case," McPharlin said.

"And do not properly prepare their officers for necessary and critical medical attention when they use such weapons."

Miami Beach Police are conducting an investigation into the teen's death, which will be reviewed by the Florida Department of Law Enforcement. But the family's lawyers said that is not enough. They are asking for a separate law enforcement agency to conduct it's own investigation.

"We want justice and support. We give thanks to those who are giving us support right there in your houses please keep the support," Hernandez's said.